Method showViewer

modules/core/PhotoSystem.js:663–671

* showViewer * Show the photo viewer

()

   * Show the photo viewer
   */
  showViewer() {
    const context = this.context;
    const layerID = this._currPhotoLayerID;
    const photoID = this._currPhotoID;
    if (!layerID || !photoID) return;   // nothing to show

    const service = context.services[layerID];
    service?.showViewer();
  }


  /**